Apparatus for setting space heating systems into operation

Claim 1

APPARATUS FOR SETTING SPACE HEATING SYSTEMS INTO OPERATION, MORE ESPECIALLY IN MOTOR VEHICLES, INCLUDING A BURNER FOR A MIXTURE OF LIQUID FUEL AND AIR; AN ELECTRIC MOTOR; A BLOWER FOR THE FEED OF COMBUSTION AIR TO SAID BURNER, DRIVEN BY SAID ELECTRIC MOTOR; AN ELECTRICAL IGNITION DEVICE FOR IGNITION OF THE FUEL-AIR MIXTURE; A SOURCE OF ELECTRIC CURRENT; WIRING PROVIDING A CIRCUIT FOR SAID IGNITION DEVICE AND CURRENT SOURCE; A SWITCH ADAPTED TO BE ACTUATED BY HAND THROUGH WHICH SAID ELECTRIC MOTOR FOR DRIVING THE COMBUSTION AIR BLOWER AND THE ELECTRIC IGNITION DEVICE ARE CONNECTABLE TO SAID SOURCE OF ELECTRIC CURRENT, SAID SWITCH BEING PROVIDED WITH A TEMPERATURE-SENSITIVE CONTROL ELEMENT AND A HEATING COIL WHICH, AT A PREARRANGED TEMPERATURE, CUTS OUT SAID SWITCH BY WAY OF SAID TEMPERATURE-SENSITIVE CONTROL ELEMENT, SAID HEATING COIL BEING ELECTRICALLY CONNECTED TO SAID SOURCE OF ELECTRIC CURRENT; WIRING PROVIDING A CIRCUIT INCLUDING SAID CURRENT SOURCE, SWITCH, AND MOTOR, A RESISTANCE BETWEEN THE ELECTRIC IGNITION DEVICE AND THE HEATING COIL OF THE MANUALLY OPERABLE SWITCH; A RELAY SWITCH LOCATED IN THE CIRCUIT OF THE ELECTRIC IGNITION DEVICE WHEREIN SAID RESISTANCE IS CONNECTED WITH ONE AND THE SAME END TO SAID RELAY SWITCH AND TO THE ELECTRIC IGNITION DEVICE; AN OVERHEAT THERMOSTAT COMPRISING A SWITCH NORMALLY OPEN, WHICH IS CLOSED AT A PRE-ARRANGED TEMPERATURE, SAID SWITCH, BEING CONNECTED IN PARALLEL WITH THE CIRCUIT PART FORMED BY SAID RESISTANCE AND SAID RELAY SWITCH.